8.1 and 8.2

Chemistry
Form 4 Chapter 8

Manufactured
Substances in Industry

TEACHER NOOR HAFIZAH BINTI HUSSAIN
SMKRC

Welcome,
my awesome
Chemistry students!

LET'S WORK TOGETHER, DO OUR BEST TO LEARN AS
MUCH AS WE CAN, AND RESPECT AND SUPPORT EACH
OTHER THROUGH ALL THE CHALLENGES. LET'S DO THIS!

Content standard Content standard
&Learning standard &Learning standard

8.1 Alloy and its importance 8.2 Composition of glass and its uses

8.1.1 Describe briefly alloy with examples 8.2.1 Describe briefly with examples the type of
8.1.2 Compare the properties of an alloy with its glass, their compositon, properties and uses.

pure metal through experiment
8.1.3 Justify the usage of alloys based on their

composition and properties.

8.1 Alloy and
its

importance

Alloy

IS A MIXTURE OF TWO OR MORE
ELEMENTS WHERE THE MAIN
ELEMENT IS A METAL.

Examples of alloys and their importance

Comparison of properties of alloys and pure metals

Comparison of properties of alloys and pure metals

Comparison of properties of alloys and pure metals

Pure and
metals
after foreign atoms
are mixed

Alloy

THE USES OF ALLOYS IS BASED ON THE COMPOSITION
AND PROPERTIES OF THE ALLOY PRODUCED.
ALLOYS ARE MADE FOR SPECIFIC PURPOSES.
SCIENTISTS CHANGE THE ELEMENTAL COMPOSITON TO
PRODUCE ALLOYS WITH DIFFERENT PROPERTIES.

Composition, properties and the uses of alloys

Composition, properties and the uses of alloys

Superconductor:

Used in electrical
transportation such as Maglev
train.
do not have electrical
resistance at very low
temperatures.
is used o make a magnetthat
can levitate the train and move
it at a veru high speed.

8.2
Composition
of glass and

its uses

Basic properties of glass

Types of glass

FUSED SILICA GLASS

SODA-LIME GLASS

Types of glass

BOROSILICATE GLASS

LEAD CRYSTAL GASS

EXERCISE!

test yourself 8.1 test yourself 8.2

Chemistry Form 4 textbook Chemistry Form 4 textbook
Pg259 Pg262

Tell me and I forget, teach
me and I may remember,
involve me and I learn.

- Benjamin Franklin

MAY WE HAVE FUN AND PRODUCTIVE
LEARNING SESSIONS AHEAD.
LOVE CHEMISTRY!

Feel free to get in touch

Contact Teacher Hafizah for any questions or clarifications